Question

simplify using appropriate properties: (3/7 x4/5) + (3/7 x3/5) -3/5​

Answer 1

Answer:

There is basic rule of order of operations which is summarized in BODMAS.

B - Bracket - Operate first within bracket

O- Off

D- Division

M - Multiplication

A - Addition

S - Subtraction.

All operation would follow above list starting from Brackets first to Subtraction last.

Step 1 - Addition within Operation within bracket

12 / 2(6-7+4) x 2 = 12/2(6-3)x2 -- Addition within bracket is performed first as addition comes first.

Step 2 - Subtraction within bracket

12 /2 (6-3) x 2 = 12/2(3) x 2 = 12/2 x 3 x 2

Step 3 - Division

12 /2 x 3 x 2 = 6 x 3 x 2

Step 4 - Multiplication

6 x3 x 2= 18 x2 =36

Answer is 36.